Rename to lnme

2026-02-18 06:57:49 +00:00 · 2020-10-18 02:33:22 +02:00
parent 49e79d9c9c
commit 5115fbb1ab
1 changed files with 0 additions and 0 deletions
--- a/lnme.go
+++ b/lnme.go
@@ -0,0 +1,123 @@
+package main
+
+import (
+	"flag"
+	"github.com/GeertJohan/go.rice"
+	"github.com/bumi/lntip/ln"
+	"github.com/didip/tollbooth"
+	"github.com/didip/tollbooth/limiter"
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
+	"log"
+	"net/http"
+	"os"
+)
+
+// move to file
+func LimitMiddleware(lmt *limiter.Limiter) echo.MiddlewareFunc {
+	return func(next echo.HandlerFunc) echo.HandlerFunc {
+		return echo.HandlerFunc(func(c echo.Context) error {
+			httpError := tollbooth.LimitByRequest(lmt, c.Response(), c.Request())
+			if httpError != nil {
+				return c.String(httpError.StatusCode, httpError.Message)
+			}
+			return next(c)
+		})
+	}
+}
+
+var stdOutLogger = log.New(os.Stdout, "", log.LstdFlags)
+
+type Invoice struct {
+	Value int64  `json:"value"`
+	Memo  string `json:"memo"`
+}
+
+func main() {
+	address := flag.String("address", "localhost:10009", "The host and port of the ln gRPC server")
+	certFile := flag.String("cert", "~/.lnd/tls.cert", "Path to the lnd tls.cert file")
+	macaroonFile := flag.String("macaroon", "~/.lnd/data/chain/bitcoin/mainnet/invoice.macaroon", "Path to the lnd macaroon file")
+	bind := flag.String("bind", ":1323", "Host and port to bind on")
+	staticPath := flag.String("static-path", "", "Path to a static assets directory. Blank to not serve any static files")
+	disableHTML := flag.Bool("disable-html", false, "Disable HTML page")
+	disableCors := flag.Bool("disable-cors", false, "Disable CORS headers")
+	requestLimit := flag.Float64("request-limit", 5, "Request limit per second")
+
+	flag.Parse()
+
+	e := echo.New()
+	if *staticPath != "" {
+		e.Static("/", *staticPath)
+	} else if !*disableHTML {
+		rootBox := rice.MustFindBox("files/root")
+		indexPage, err := rootBox.String("index.html")
+		if err == nil {
+			stdOutLogger.Print("Running page")
+			e.GET("/", func(c echo.Context) error {
+				return c.HTML(200, indexPage)
+			})
+		}
+	}
+
+	if !*disableCors {
+		e.Use(middleware.CORS())
+	}
+	e.Use(middleware.Recover())
+
+	if *requestLimit > 0 {
+		limiter := tollbooth.NewLimiter(*requestLimit, nil)
+		e.Use(LimitMiddleware(limiter))
+	}
+
+	// Embed static files and serve those on /lnme (e.g. /lnme/lnme.js)
+	assetHandler := http.FileServer(rice.MustFindBox("files/assets").HTTPBox())
+	e.GET("/lnme/*", echo.WrapHandler(http.StripPrefix("/lnme/", assetHandler)))
+
+	stdOutLogger.Printf("Connection to %s using macaroon %s and cert %s", *address, *macaroonFile, *certFile)
+	lndOptions := ln.LNDoptions{
+		Address:      *address,
+		CertFile:     *certFile,
+		MacaroonFile: *macaroonFile,
+	}
+	lnClient, err := ln.NewLNDclient(lndOptions)
+	if err != nil {
+		stdOutLogger.Print("Error initializing LND client:")
+		panic(err)
+	}
+
+	// endpoint URLs compatible to the LND REST API
+	e.POST("/v1/invoices", func(c echo.Context) error {
+		i := new(Invoice)
+		if err := c.Bind(i); err != nil {
+			stdOutLogger.Printf("Bad request: %s", err)
+			return c.JSON(http.StatusBadRequest, "Bad request")
+		}
+
+		invoice, err := lnClient.AddInvoice(i.Value, i.Memo)
+		if err != nil {
+			stdOutLogger.Printf("Error creating invoice: %s", err)
+			return c.JSON(http.StatusInternalServerError, "Error adding invoice")
+		}
+
+		return c.JSON(http.StatusOK, invoice)
+	})
+
+	e.GET("/v1/invoice/:invoiceId", func(c echo.Context) error {
+		invoiceId := c.Param("invoiceId")
+		invoice, err := lnClient.GetInvoice(invoiceId)
+
+		if err != nil {
+			stdOutLogger.Printf("Error looking up invoice: %s", err)
+			return c.JSON(http.StatusInternalServerError, "Error fetching invoice")
+		}
+
+		return c.JSON(http.StatusOK, invoice)
+	})
+
+	// debug test endpoint
+	e.GET("/ping", func(c echo.Context) error {
+		return c.JSON(http.StatusOK, "pong")
+	})
+
+	e.Logger.Fatal(e.Start(*bind))
+}